On Tue, Feb 04, 2020 at 04:59:25PM +0530, Anshuman Gupta wrote:
> intel_plane_fb_max_stride should return the max stride of
> primary plane for first available pipe in intel device info
> pipe_mask.
>
> changes since RFC:
> - Introduced a helper to get first intel_crtc intel_get_first_crtc. [Ville]
>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Signed-off-by: Anshuman Gupta <anshuman.gu...@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 5 +++--
> drivers/gpu/drm/i915/display/intel_display_types.h | 6 ++++++
> 2 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index 7c51eb3faeb3..0dcf400f6954 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -2706,9 +2706,10 @@ u32 intel_plane_fb_max_stride(struct drm_i915_private
> *dev_priv,
>
> /*
> * We assume the primary plane for pipe A has
> - * the highest stride limits of them all.
> + * the highest stride limits of them all,
> + * if in case pipe A is disabled, use the first pipe from pipe_mask.
> */
> - crtc = intel_get_crtc_for_pipe(dev_priv, PIPE_A);
> + crtc = intel_get_first_crtc(dev_priv);
> if (!crtc)
> return 0;
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h
> b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 80a6460da852..1f295c89061a 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -1423,6 +1423,12 @@ vlv_pipe_to_channel(enum pipe pipe)
> }
> }
>
> +static inline struct intel_crtc *
> +intel_get_first_crtc(struct drm_i915_private *dev_priv)
> +{
> + return to_intel_crtc(drm_crtc_from_index(&dev_priv->drm, 0));
> +}
> +
> static inline struct intel_crtc *
> intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
> {
> --
> 2.24.0
--
Ville Syrjälä
Intel
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